ultra-heavy-load, high-rigidity lm guide models nr and nrs nrs series.pdf · a. dimensions of the...

22
a-250 LM Guide® Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS Structure and Features LM rail LM block Inner seal Endplate End seal Side seal Ball Oil valve Grease nipple 90° 45° Radial type Model NR 45° 45° 4-way equal-load type Model NRS Cross section Balls roll in four rows of raceways precision-ground on an LM rail and an LM block, and end- plates incorporated in the LM block allow the balls to circulate. The raceways are cut into deep grooves that have a radius closer to that of the balls than in the conventional design, using special equipment and an extremely precise cutting technique. This design allows high rigidity, high vibration/impact resistance and high damping capacity, all of which are required for machine tools, thus making these models capable of bearing ultra-heavy loads. ●Improved damping capacity While the machine tool (equipped with NR or NRS) is not cutting a workpiece during operation, the LM Guide travels normally and smoothly. While the machine tool is cutting the workpiece, the cutting load is applied to the LM Guide to increase and the contact area between the balls and the raceway, allowing an appropriate mixture of rolling and sliding motions to be achieved. Accordingly, the friction resistance is increased and the damping capacity is improved. Since the absolute slip during the rolling and sliding motion is insignificant, it causes little wear and does not affect the service life. ●Highly rational LM Guide The excessively large differential slip occurring in a Gothic-arch groove does not happen with these models. They smoothly travel and achieve high positioning accuracy during fast feeding. During the cutting operation, appropriate slip occurs according to the cutting load, the rolling resistance is increased and the damping capacity is increased. Thus, models NR and NRS are highly rational LM Guides. ●High rigidity To increase the rigidity of the LM block and the LM rail, which may deteriorate the overall rigid- Fig. 1 Structure of Models NR and NRS

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Page 1: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a-250

LM Guide®

Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS

Structure and Features

LM rail

LM block

Inner seal

EndplateEnd seal

Side sealBall

Oil valveGrease nipple

90°

45°

Radial type Model NR

45°

45°

4-way equal-load type Model NRS

Cross section

Balls roll in four rows of raceways precision-ground on an LM rail and an LM block, and end-

plates incorporated in the LM block allow the balls to circulate. The raceways are cut into

deep grooves that have a radius closer to that of the balls than in the conventional design,

using special equipment and an extremely precise cutting technique. This design allows high

rigidity, high vibration/impact resistance and high damping capacity, all of which are required

for machine tools, thus making these models capable of bearing ultra-heavy loads.

●Improved damping capacityWhile the machine tool (equipped with NR or NRS) is not cutting a workpiece during operation,

the LM Guide travels normally and smoothly. While the machine tool is cutting the workpiece,

the cutting load is applied to the LM Guide to increase and the contact area between the balls

and the raceway, allowing an appropriate mixture of rolling and sliding motions to be achieved.

Accordingly, the friction resistance is increased and the damping capacity is improved.

Since the absolute slip during the rolling and sliding motion is insignificant, it causes little wear

and does not affect the service life.

●Highly rational LM GuideThe excessively large differential slip occurring in a Gothic-arch groove does not happen with

these models. They smoothly travel and achieve high positioning accuracy during fast feeding.

During the cutting operation, appropriate slip occurs according to the cutting load, the rolling

resistance is increased and the damping capacity is increased. Thus, models NR and NRS are

highly rational LM Guides.

●High rigidityTo increase the rigidity of the LM block and the LM rail, which may deteriorate the overall rigid-

Fig. 1 Structure of Models NR and NRS

Page 2: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-251

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a251ity of the LM Guide in the reverse-radial and lateral directions, made full use of FEM to

achieve optimal design within the limited dimensional range.

For both the radial type model NR and the four-way equal load type model NRS, offers

two types with the same dimensions and different characteristics. It allows you to select the

desired type according to the application.

●Ultra heavy loadSince the curvature of the raceway is approximated to the ball diameter, the ball contact area

under a load is increased and the LM Guide is capable of receiving an ultra-heavy load.

Types and FeaturesModels NR-R/NRS-R Models NR-A/NRS-A Models NR-B/NRS-B

Models NR-LR/NRS-LR Models NR-LA/NRS-LA Models NR-LB/NRS-LB

W

L L L

The LM block has a smaller

width (W) and is equipped with

tapped holes.

Suitable for places where space

for the table width is limited.

The flange of the LM block

has tapped holes.

The flange of the LM block

has through holes. Used in

places where the table

cannot have through holes

for mounting bolts.

The LM block has the same

sectional shape as models

NR-R/NRS-R, but has a longer

overall LM block length (L)

and a greater rated load.

The LM block has the same

sectional shape as models

NR-A/NRS-A, but has a longer

overall LM block length (L)

and a greater rated load.

The LM block has the same

sectional shape as models

NR-B/NRS-B, but has a longer

overall LM block length (L)

and a greater rated load.

Page 3: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

●Increased Rigidity in theLateral and Reverse-ra-dial Directions

Since with LM Guide model NR, the distance

"H" between the rail bottom and the lower-

groove balls (balls receiving lateral loads) is

short, the ratio between the rail width "W" and

the distance "H" is small, and the distance "T"

between the LM rail mounting bolt seat and

the LM rail bottom is short. Accordingly, the

deformation of the LM rail under a lateral load is minimal, and the rigidity in the lateral direc-

tions is increased.

Also, since the dimension "B" of the LM block is short and the thickness "A" is large, the lateral

extension of the LM block under a reverse-radial or lateral load is minimized. This structure

allows the rigidity in the reverse-radial direction to be increased.

In comparison to the old model with the same model number, the ball diameter of NR is smaller

and the effective number of balls is approximately 1.3 times greater, thus to increase static

rigidity.

a-252

Characteristics of Models NR and NRS●Increased Rigidity inMajor Load Directions

The structure with a contact angle of 90゜

used in model NR differs from that with a 45゜

contact angle also in rigidity. Under the

same radial load P, the displacement in the

radial direction with model NR having a con-

tact angle of 90゜is 44% less than the 45 .゚

The figure on the right shows the difference

in radial load and displacement. Accordingly,

where high rigidity in the radial direction is

required, model NR is more advantageous.

P

Displacement in radial directionδ’1

Displacementδ1

P P1

Displacement in radial directionδ’2

Displacementδ2

45° 90°

Contact angle of 90° (Model NR)

Contact angle of 45°

Fig. 2 Displacement under a Radial Load

A

W

HT

B

Radial type contact structure

Fig. 4 Cross Section of Model NR

Load and displacement when contact angles are not the same (Da = 6.35 mm) (displacement per 24 balls)

Displacement(μm)

25

20

15

10

5

0 2 4 6 8 10

When the contact angle is 45°

When the contact angle is 90°

Applied load (kN)

Fig. 3 Radial Load and Displacement (normal clearance, no preload)

Page 4: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-253

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a253●Comparison of Contact Surface and Internal Stress

between Different Contact StructuresAs shown in Fig. 5, the contact area and the internal stress of a ball greatly vary depending on

the shape of contact surface.

With the conventional roller guide, the effective length is shorter than the apparent value due

to the retention of the rollers. Additionally, the change of stress distribution in the contact

section caused by a mounting error significantly affects the differential slip.

0.51Da 0.52Da 0.55Da

d2d1

1.8

d2 d1 d1d2

d1d2d2 d1d2 d1

3.61.2 1.0 1.0

< ≒ d1≒d2 d1≪d2

Change in differential slip: none

Change in differential slip: none

Change in differential slip: large

Change in differential slip: large

Contact stress distribution 1

Contact stress distribution 2

Normal clearance contact area

Contact area under a preload

Change in contact surface due to a mounting error

Fig. 5 Comparison of Contact Surface (φ6.350 ball, φ6 x 6Rroller)

Page 5: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

When the LM block of model NR receives loads in the reverse-radial and lateral directions

simultaneously, the equivalent load is obtained from the equation below.

PE=X・PL+Y・PTwhere

PE :Equivalent load (N)

・Reverse-radial direction

・Lateral direction

PL :Reverse-radial load (N)

PT :Lateral load (N)

X/Y axes:Equivalent factor (see table 2)

a-254

Rated Loads in All DirectionsModels NR/NRS are capable of receiving

loads in all four directions: radial, reverse-

radial and lateral directions.

The basic load ratings of model NR are indi-

cated by the values in the radial directions in

Fig. 6, and their actual values are provided in

the dimensional table for NR/NRS. The val-

ues in the reverse-radial and lateral direc-

tions are obtained from table 1.

The basic load ratings of model NRS are

equal in al l the four directions (radial ,

reverse-radial and lateral directions), and

their actual values are provided in the dimen-

sional table for NR/NRS.

CTC0T

CTC0T

CLC0L C0

CPL PR

PT PT

Fig. 6

Table 1 Rated Loads in All Directions with Model NR

Direction

Radial directionReverse-radialdirection

Lateral direction

C

CL=0.78C

CT=0.48C

Basic dynamic load rating Basic static load rating

C0

C0L=0.71C0

C0T=0.45C0

Table 2 Equivalent Factor of Model NR

PE

Equivalent load in reverse-radial direction

Equivalent load in lateral direction

X

1.0

0.5

Y

2

1

When the LM block of model NRS receives loads in the reverse-radial and lateral directions

simultaneously, the equivalent load is obtained from the equation below.

PE=PR(PL)+PTwhere

PE :Equivalent load (N)

・Radial direction

・Reverse-radial direction

・Lateral direction

PR :Radial load (N)

PL :Reverse-radial load (N)

PT :Lateral load (N)

Equivalent Load

Page 6: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-255

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a255

Options

offers various dust prevention accessories for models NR and NRS.When a dust prevention accessory is required, specify the desired item with the corresponding

symbol provided in table 3 (for details of dust prevention accessories, see pages a-24 and a-

25).

For supported model numbers for dust prevention accessories and overall LM block length with

dust prevention accessories attached (dimension L), see page a-274.

Dust Prevention Accessories

Table 3 Symbols of Dust Prevention Accessories for Models NR and NRS

Symbol

UU

SS

DD

ZZ

KK

SSHH

DDHH

ZZHH

KKHH

Dust prevention accessory

With end seal

With end seal + side seal + inner seal

With double seals + side seal + inner seal

With end seal + side seal + inner seal + metal scraper

With double seals + side seal + inner seal + metal scraper

With end seal + side seal + inner seal + LaCS

With double seals + side seal + inner seal + LaCS

With end seal + side seal + inner seal + metal scraper + LaCS

With double seals + side seal + inner seal + metal scraper + LaCS

Seal resistance valueFor the maximum seal resistance value per

LM block when a lubricant is applied on seals

NR/NRS…UU, refer to the corresponding

value provided in table 4.

Table 4 Maximum Seal Resistance Value of Seals NR/NRS…UU

Model No.

NR/NRS 25X

NR/NRS 30

NR/NRS 35

NR/NRS 45

NR/NRS 55

NR/NRS 65

NR/NRS 75

NR/NRS 85

NR/NRS 100

Seal resistance value

15

17

23

24

29

42

42

42

51

Unit: N

Page 7: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a-256

WS

bb1

t1PH

P

W

H1t2

S1

NR/NRS 25X to 45

W

H1t2

t3

S1

NR/NRS 55 to 100

LmaxLmin

T

●Simplified Bellows JSNFor models NR/NRS, a simplified bellows is available. To gain a higher dust-prevention effect,

attach a telescopic cover outside the simplified bellows after the bellows is mounted as shown

in Fig. 7.

JN 25

JN 30

JN 35

JN 45

JN 55

JN 65

JN 75

JN 85

JN 100

48

60

70

86

100

126

145

156

200

25.5

31

35

40.5

49

57.5

64

70.5

82

25.5

31

35

40.5

49

57.5

64

70.5

82

10

14

15

17

20

20

30

30

30

26.6

34

36

47

54

64

80

110

140

4.6

5.5

6

6.5

10

13.5

10.5

15.5

15

13

17

20.5

24

29.5

36.2

34.2

39.5

40

18

20

26

28

34

M3✕5R

M4✕8R

M4✕8R

M5✕10R

M5✕10R

M6✕12R

M6✕12R

M6✕12R

M8✕16R

M4✕4R

M4✕4R

M5✕4R

M5✕4R

M5✕4R

M6✕5R

M6✕5R

M6✕5R

M6✕5R

11

15

15

17

20

22

25

39.5

30

1.5

1.5

2

2

2

3.2

3.2

3.2

3.2

NR/NRS 25X

NR/NRS 30

NR/NRS 35

NR/NRS 45

NR/NRS 55

NR/NRS 65

NR/NRS 75

NR/NRS 85

NR/NRS 100

Model

No. W H H1 P b1 t1 t2 t3 S S1Mounting bolt

bA,LAB,LB T

Supported

model

Major dimensions

7

9

10

10

13

13

20

20

20

ALmaxLmin

Unit: mm

Lmin =      S: Stroke length (mm)

Lmax = Lmin・A  A: Extension rate

S (A-1)

Note: The length of the bellows is calculated as follows.

Model number coding JN25-60/420

zModel number…bellows for NR/NRS25XxBellows dimensions (length when compressed /length when extended)

z x

Table Telescopic cover Simplified bellows

Base

Fig. 7 Example of Mounting the Simplified Bellows

Note 1: When desiring to use the simplified bellows other than in horizontal mount (i.e., vertical, wall and inverted mount),or when desiring a heat-resistant type of bellows, contact .

Note 2: For lubrication when using the simplified bellows, contact .Note 3: When using the simplified bellows, the LM block and LM rail need to be machined so that the bellows can be

mounted. Be sure to indicate that the simplified bellows is required when ordering the LM Guide.

Page 8: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-257

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a257

●Plate Cover SVFor models NR/NRS, plate covers are avail-

able as an essential means of dust preven-

tion for machine tools. By covering the LM

rail mounting holes with an ultra thin stain-

less steel (SUS304) plate, the plate cover

SV drastically increases sealability, thus to

prevent the penetration of a coolant or cut-

ting chips from the top face of the LM rail,

which was previously impossible.

For the mounting procedure, see page a-27.

Note: When mounting the plate cover, the LM railneeds to be machined. Indicate that theplate cover is required when ordering the LMGuide.

LM rail

Plate cover SV

Fixing jig NT

Slide pieceTension screw

Case fixing bolt

Note: The plate cover is available for models NR35to 100 and NRS35 to 100.

●Dedicated Cap C for LMRail Mounting Holes

If any of the LM rail mounting holes of an LM

Guide is filled with cutting chips or foreign

matter, they may enter the LM block struc-

ture. Entrance of such foreign matter can be

prevented by covering each LM rail mounting

hole with the dedicated cap so that the top of

the mounting holes is on the same level as

the LM rail top face.

Since the dedicated cap C for LM rail mount-

ing holes uses a special synthetic resin with

high oil resistance and high wear resistance,

it is highly durable.

When placing an order, specify the desired

cap type with the corresponding cap number

indicated in table 5.

For the procedure for mounting the cap, see

page a-22.

Table 5 Major Dimensions of Dedicated Cap C

Model

No.

Cap C

model No.

Bolt

used

Major dimensions mm

D H

NR 25X

NR 30

NR 35

NR 45

NR 55

NR 65

NR 85

C 5 M 5 9.8 2.4

C 6 M 6 11.4 2.7

C 8 M 8 14.4 3.7

C12 M12 20.5 4.7

C14 M14 23.5 5.7

C16 M16 26.5 5.7

C22 M22 35.5 5.7

D

H

Dedicated Cap C

Page 9: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a-258

●Steel Tape SPFor models NR/NRS, steel tapes are available as an essential means of dust prevention for

machine tools. By covering the LM rail mounting holes with an ultra thin stainless steel

(SUS304) plate, the steel tape SP further increases sealability, thus to prevent the penetra-

tion of a coolant or cutting chips from the top face of the LM rail, which was previously impos-

sible (when mounting the steel tape, end piece EP can be used as a means to secure the

cover).

For the mounting procedure, see page a-28.

Note: When mounting the steel tape, the LM rail needs to be machined. Indicate that the steel tape isrequired when ordering the LM Guide.

When QZ Lubricator is required, specify the desired type with the corresponding symbol indi-

cated in table 6 (for details of QZ Lubricator, see pages a-19 and a-20).

For supported LM Guide model numbers for QZ Lubricator and overall LM block length with QZ

Lubricator attached (dimension L), see page a-274.

QZ LubricatorTM

Table 6 Parts Symbols for Models NR/NRS with QZ Lubricator Attached

Symbol

QZUU

QZSS

QZDD

QZZZ

QZKK

QZSSHH

QZDDHH

QZZZHH

QZKKHH

Dust prevention accessories for LM Guide with QZ Lubricator attached

With end seal

With end seal + side seal + inner seal

With double seals + side seal + inner seal

With end seal + side seal + inner seal + metal scraper + QZ

With double seals + side seal + inner seal + metal scraper + QZ

With end seal + side seal + inner seal + LaCS + QZ

With double seals + side seal + inner seal + LaCS + QZ

With end seal + side seal + inner seal + metal scraper + LaCS + QZ

With double seals + side seal + inner seal + metal scraper + LaCS + QZ

Note 1: The steel tape is available for models NR25 to 100 and NRS25 to 100.Note 2: With models NR/NRS, balls will fall off if the LM block is removed from the LM rail. Falling of balls

may cause an accident. When removing the LM block from the LM rail, use the LM block remov-ing/mounting jig.

Steel tape SP

End piece EP

Setscrew

Tap for attaching a bellowsFig. 8

LM block

LM block mounting/ removing jig

Page 10: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-259

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a259

An oil lubricant-only lubrication adapter is available for models NR/NRS.

Even if the LM Guide is installed in an orientation where oil lubrication is difficult, such as wall

mount and inversed mount, the adapter is capable of feeding a constant quantity of lubricant to

the four raceways.

FeaturesThe dedicated lubrication adapter for models

NR-NRS is built in with a constant quantity

distributor. Therefore, the adapter can accu-

rately feed a constant quantity of lubricant to

each raceway regardless of the mounting ori-

entation.

The adapter is economical since it is capable

of constantly feeding the optimum amount of

lubricant and helping eliminate the supply of

surplus lubricant.

To provide pipe arrangement, simply connect

an intermittent lubrication pump widely used

for ordinary machine tools to the greasing

holes (M8) on the front and the side of the

lubrication adapter.

Lubrication plate

Lubrication plate

To lubrication pump

To lubrication pump

Constant quantity distributor

Fig. 9 Structural Drawing

A30N

A35N

A45N

A55N

A65N

A85N

56

66

81

94

119

147

29

33

38

45.5

55.5

68.5

25

25

25

25

25

25

29

35

48

56

67

92

14.5

17

20

22

26.3

34

46

54

67

76

92

114

14

16.5

16.5

20.5

25.5

32

5

6

7

7

11.5

15.5

5.3

5.3

7.8

7.8

7.8

7.8

3.5

4.5

6.6

6.6

9

9

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

M8✕8

0.03✕4

0.06✕4

Model No. WidthW

HeightM T W1 M1 B E N T1 d M✕R M1✕R1

Quantityper shot(cc/shot)

Major dimensions

Table 7 Dimension Table for Lubrication Adapter

Specifications

W

ME

NN

M1

B

M×R2-M1×R1

W1

T1T

2-d drilled through

Fig. 10

Viscosity range of lubricant used

Discharge

Diameter of pipe connected

Material

32 to 64 ㎜2/s recommended

0.03×4, 0.06×4cc/1shot

φ4, φ6

Aluminum alloy

Unit: mm

Lubrication Adapter

Page 11: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a-260

With models NR-NRS, if the LM block is pulled

out from the LM rail, balls will fall off. To pre-

vent the LM block from being pulled out, end

pieces are mounted before shipment. If

removing the end piece when using the LM

Guide, be sure that the LM block will not

overrun.

The end piece can also be used as a fixing jig

for a steel tape, and is available also for the

LM rail of models SSR, SR and HSR.

A

C

B

T

Fig. 11 End Piece EP for Models NR-NRS

Table 8 Dimension Table for End Piece RP for Models NR-NRS

Model No.

NR/NRS 25X

NR/NRS 30

NR/NRS 35

NR/NRS 45

NR/NRS 55

NR/NRS 65

NR/NRS 75

NR/NRS 85

NR/NRS 100

A

26

31

38

49

57

69.4

81.7

91.4

106.4

B

14

14

16

18

20

22

28

22

25

C

25

31

32.5

41

46.5

59

56

68

73

T

1.5

1.5

2

2

2

3.2

3.2

3.2

3.2

Unit: mm

End Piece EP

Page 12: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-261

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a261

Table 9 shows the standard lengths and the maximum lengths of models NR/NRS variations. If

the maximum length of the desired LM rail exceeds them, connected rails will be used.

Contact for details.

For the G dimension when a special length is required, we recommend selecting the corre-

sponding G value from the table. The longer the G dimension is, the less stable the G area may

become after installation, thus causing an adverse impact to accuracy.

Standard Length and Maximum Length of the LM Rail

Note 1: The maximum length varies with accuracy grades. Contact for details.

Table 9 Standard Length and Maximum Length of the LM Rail for Models NR/NRS Unit: mm

Model No.

Standard pitch F 40 80 80 105 120 150 150 180 210

15 20 20 22.5 30 35 40 45 40

3000 3000 3000 3000 3000 3000 3000 3000 3000

G

Max length

NR/NRS25X

230270350390470510590630710750830950990

107011101190123013101350143014701550159017101830195020702190231024302470

NR/NRS30

280360440520600680760840920

10001080116012401320140014801560164017201800188019602040220023602520268028403000

NR/NRS35

280360440520600680760840920

10001080116012401320140014801560164017201800188019602040220023602520268028403000

NR/NRS45

570675780885990

1095120013051410151516201725183019352040214522502355246025652670277528802985

NR/NRS55

780900

10201140126013801500162017401860198021002220234024602580270028202940

NR/NRS65

1270157020202620

NR/NRS75

1280158020302630

NR/NRS85

1530189022502610

NR/NRS100

1340176021802600

L0

F FG G

StandardLMraillength(L

0)

Note 2: If connected rails are not allowed and a greater length than the maximum values above is required,contact .

Page 13: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-263

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a263

a-262

Model No.

Externaldimensions LM block dimensions

Height

M

Width

W

Length

L B C S×R L1 T K N f0 E e0 D0

Grease

nipple

WidthW1

0-0.05

LM rail dimensions Basic loadrating

Static permissible moment kN-m* Mass

W2

HeightM1

PitchF d1×d2×h

C0

kN

C

kN

LM block

kg

LM rail

kg/m

MC

1 block

W

W2 W1

L1 e0

f0

L

CB

(K) M

Tφd2

**4-φD0

φd1

F

Nh

M1

(E) 4-S×R

L1 e0

f0

L

C

φd2

**4-φD0

φd1F

Nh

M1

(E) 6-S×R

NR 25XRNR 25XLRNR 30RNR 30LRNR 35RNR 35LRNR 45RNR 45LRNR 55RNR 55LRNR 65RNR 65LRNR 75RNR 75LRNR 85RNR 85LRNR 100RNR 100LR

31

38

44

52

63

75

83

90

105

50

60

70

86

100

126

145

156

200

82.810298

120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8

32

40

50

60

65

76

95

100

130

3550406050726080759570

11080

13080

140150200

M6✕8

M8✕10

M8✕12

M10✕17

M12✕18

M16✕20

M18✕25

M18✕25

M18✕27

62.481.670.993.477.9

103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4

9.7

9.7

11.7

14.7

17.5

21.5

25.3

27.3

34.3

25.5

31

35

40.5

49

60

68

73

85

7

7

8

10

11

16

18

20

23

7

7

8

8

10

15

17

20

23

12

12

12

16

16

16

16

16

10

4

5

6

7

8

9

9

10

12

3.9

3.9

5.2

5.2

5.2

8.2

8.2

8.2

8.2

B-M6F

B-M6F

B-M6F

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/4

25

28

34

45

53

63

75

85

100

12.5

16

18

20.5

23.5

31.5

35

35.5

50

17

21

24.5

29

36.5

43

44

48

57

40

80

80

105

120

150

150

180

210

6✕9.5✕8.5

7✕11✕9

9✕14✕12

14✕20✕17

16✕23✕20

18✕26✕22

22✕32✕26

24✕35✕28

26✕39✕32

334448.764.963.185.796

126131170189260271355336435479599

84.6113122162155210231303310402436600610800751972

10401300

0.7711.261.262.181.753.143.375.935.398.878.76

16.814.425.420.334.73447.3

3.866.296.63

10.69.47

15.517.72827.843.844.779.973.3

118102160167238

0.4690.7750.7781.331.081.922.073.593.35.415.39

10.18.91

15.412.42120.729.2

2.333.824.056.475.89.43

10.816.916.926.627.34844.771.462.696.2

101146

0.911.211.471.952.243.034.455.826.989.05

11.615.919.325.226.834.643.454.6

0.430.550.7411.11.422.83.34.368.78.7

11.612.315.821.826.1

3.1

4.3

6.2

9.8

14.5

20.3

24.6

30.5

42.6

Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately

Unit: mmModel NR-R Model NR-LR

Models NR-R NR-LRModels NR-R NR-LR

Model number coding NR35 LR 2 QZ KKHH C0 +1240L P Z-Ⅱ

zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.

z . ⁄0,mnbvcx

Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.

2 blocks inclose contact1 block

MA

1 block 2 blocks inclose contact

MB

Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.

will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.

Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-

tacting with each other

Page 14: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-265

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a265

a-264 Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately

Model No.

Externaldimensions LM block dimensions

Height

M

Width

W

Length

L B C S×R L1 T K N f0 E e0 D0

Grease

nipple

WidthW1

0-0.05

LM rail dimensions Basic loadrating

Static permissible moment kN-m* Mass

W2

HeightM1

PitchF d1×d2×h

C0

kN

C

kN

LM block

kg

LM rail

kg/m

MC

1 block

NRS 25XRNRS 25XLRNRS 30RNRS 30LRNRS 35RNRS 35LRNRS 45RNRS 45LRNRS 55RNRS 55LRNRS 65RNRS 65LRNRS 75RNRS 75LRNRS 85RNRS 85LRNRS 100RNRS 100LR

31

38

44

52

63

75

83

90

105

50

60

70

86

100

126

145

156

200

82.810298

120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8

32

40

50

60

65

76

95

100

130

3550406050726080759570

11080

13080

140150200

M6✕8

M8✕10

M8✕12

M10✕17

M12✕18

M16✕20

M18✕25

M18✕25

M18✕27

62.481.670.993.477.9

103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4

9.7

9.7

11.7

14.7

17.5

21.5

25.3

27.3

34.3

25.5

31

35

40.5

49

60

68

73

85

7

7

8

10

11

16

18

20

23

7

7

8

8

10

15

17

20

23

12

12

12

16

16

16

16

16

10

4

5

6

7

8

9

9

10

12

3.9

3.9

5.2

5.2

5.2

8.2

8.2

8.2

8.2

B-M6F

B-M6F

B-M6F

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/4

25

28

34

45

53

63

75

85

100

12.5

16

18

20.5

23.5

31.5

35

35.5

50

17

21

24.5

29

36.5

43

44

48

57

40

80

80

105

120

150

150

180

210

6✕9.5✕8.5

7✕11✕9

9✕14✕12

14✕20✕17

16✕23✕20

18✕26✕22

22✕32✕26

24✕35✕28

26✕39✕32

25.934.538.25149.567.275.398.8

103133148204212278264342376470

59.879.786.1

115109148163214220284309425431566531687737920

0.5680.9260.9261.61.282.292.474.343.976.496.45

12.310.618.614.925.425.134.6

2.844.64.867.836.92

11.31320.520.53232.958.653.88775.3

117123174

0.5680.9260.9261.61.282.292.474.343.976.496.45

12.310.618.614.925.425.134.6

2.844.64.867.836.92

11.31320.520.53232.958.653.88775.3

117123174

0.6330.8461.021.361.542.093.094.064.866.288.11

11.113.417.618.724.230.438.1

0.430.550.7411.11.422.83.34.368.78.7

11.612.315.821.826.1

3.1

4.3

6.2

9.8

14.5

20.3

24.6

30.5

42.6

Unit: mm

W

W2 W1

L1 e0

f0

L

CB

(K) M

Tφd2

**4-φD0

φd1

M1

F

Nh

(E) 4-S×R L1 e0

f0

L

C

φd2

**4-φD0

φd1F

hN

M1

(E) 6-S×R

Model NRS-R Model NRS-LR

Models NRS-R NRS-LRModels NRS-R NRS-LR

Model number coding NRS45 LR 2 QZ ZZHH C0 +1200L P Z-Ⅱ

zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.

z . ⁄0,mnbvcx

Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.

Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.

will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.

Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-

tacting with each other

2 blocks inclose contact1 block

MA

1 block 2 blocks inclose contact

MB

Page 15: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a-266

a. Dimensions of the LM Guides

a-267

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a267

W

MT

W2 W1

T1

L1 e0

f0

L

CB

(K)

φd2

**4-φD0

φd1

M1

F

Nh

(E) 4-S

L1 e0

f0

L

C

φd2

**4-φD0

φd1F

Nh

M1

(E) 6-S

Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately

Model No.

Externaldimensions LM block dimensions

Height

M

Width

W

Length

L B C S×R L1 T T1 K N f0 E e0 D0

Grease

nipple

WidthW1

0-0.05

LM rail dimensions Basic loadrating

Static permissible moment kN-m* Mass

W2

HeightM1

PitchF d1×d2×h

C0

kN

C

kN

LM block

kg

LM rail

kg/m

MC

1 block

NR 25XA NR 25XLANR 30ANR 30LANR 35ANR 35LANR 45ANR 45LANR 55ANR 55LANR 65ANR 65LANR 75ANR 75LANR 85ANR 85LANR 100ANR 100LA

31

38

44

52

63

75

83

90

105

72

90

100

120

140

170

195

215

260

82.810298

120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8

59

72

82

100

116

142

165

185

220

45

52

62

80

95

110

130

140

150200

M8✕16

M10✕18

M10✕20

M12✕22

M14✕24

M16✕28

M18✕30

M20✕34

M20✕38

62.481.670.993.477.9

103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4

14.8

16.8

18.8

20.5

22.5

26

28

32

35

16

18

20

22

24

28

30

34

38

25.5

31

35

40.5

49

60

68

73

85

7

7

8

10

11

16

18

20

23

7

7

8

8

10

15

17

20

23

12

12

12

16

16

16

16

16

10

4

5

6

7

8

9

9

10

12

3.9

3.9

5.2

5.2

5.2

8.2

8.2

8.2

8.2

B-M6F

B-M6F

B-M6F

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/4

25

28

34

45

53

63

75

85

100

23.5

31

33

37.5

43.5

53.5

60

65

80

17

21

24.5

29

36.5

43

44

48

57

40

80

80

105

120

150

150

180

210

6✕9.5✕8.5

7✕11✕9

9✕14✕12

14✕20✕17

16✕23✕20

18✕26✕22

22✕32✕26

24✕35✕28

26✕39✕32

334448.764.963.185.796

126131170189260271355336435479599

84.6113122162155210231303310402436600610800751972

10401300

0.7711.261.262.181.753.143.375.935.398.878.76

16.814.425.420.334.73447.3

3.866.296.63

10.69.47

15.517.72827.843.844.779.973.3

118102160167238

0.4690.7750.7781.331.081.922.073.593.35.415.39

10.18.91

15.412.42120.729.2

2.333.824.056.475.89.43

10.816.916.926.627.34844.771.462.696.2

101146

0.911.211.471.952.243.034.455.826.989.05

11.615.919.325.226.834.643.454.6

0.580.771.11.41.51.92.73.54.45.77.6

10.911.31516.220.726.731.2

3.1

4.3

6.2

9.8

14.5

20.3

24.6

30.5

42.6

Unit: mmModel NR-A Model NR-LA

Models NR-A NR-LAModels NR-A NR-LA

Model number coding NR35 A 2 QZ KKHH C0 +1400L P Z-Ⅱ

zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.

z .,mnbvcx ⁄0

Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.

2 blocks inclose contact1 block

MA

1 block 2 blocks inclose contact

MB

Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.

will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.

Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-

tacting with each other

Page 16: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-269

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a269

a-268

Model No.

Externaldimensions LM block dimensions

Height

M

Width

W

Length

L B C S×R L1 T T1 K N f0 E e0 D0

Grease

nipple

WidthW1

0-0.05

LM rail dimensions Basic loadrating

Static permissible moment kN-m* Mass

W2

HeightM1

PitchF d1×d2×h

C0

kN

C

kN

LM block

kg

LM rail

kg/m

MC

1 block

NRS 25XA NRS 25XLANRS 30ANRS 30LANRS 35ANRS 35LANRS 45ANRS 45LANRS 55ANRS 55LANRS 65ANRS 65LANRS 75ANRS 75LANRS 85ANRS 85LANRS 100ANRS 100LA

31

38

44

52

63

75

83

90

105

72

90

100

120

140

170

195

215

260

82.810298

120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8

59

72

82

100

116

142

165

185

220

45

52

62

80

95

110

130

140

150200

M8✕16

M10✕18

M10✕20

M12✕22

M14✕24

M16✕28

M18✕30

M20✕34

M20✕38

62.481.670.993.477.9

103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4

14.8

16.8

18.8

20.5

22.5

26

28

32

35

16

18

20

22

24

28

30

34

38

25.5

31

35

40.5

49

60

68

73

85

7

7

8

10

11

16

18

20

23

7

7

8

8

10

15

17

20

23

12

12

12

16

16

16

16

16

10

4

5

6

7

8

9

9

10

12

3.9

3.9

5.2

5.2

5.2

8.2

8.2

8.2

8.2

B-M6F

B-M6F

B-M6F

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/4

25

28

34

45

53

63

75

85

100

23.5

31

33

37.5

43.5

53.5

60

65

80

17

21

24.5

29

36.5

43

44

48

57

40

80

80

105

120

150

150

180

210

6✕9.5✕8.5

7✕11✕9

9✕14✕12

14✕20✕17

16✕23✕20

18✕26✕22

22✕32✕26

24✕35✕28

26✕39✕32

25.934.538.25149.567.275.398.8

103133148204212278264342376470

59.879.786.1

115109148163214220284309425431566531687737920

0.5680.9260.9261.61.282.292.474.343.976.496.45

12.310.618.614.925.425.134.6

2.844.64.867.836.92

11.31320.520.53232.958.653.88775.3

117123174

0.5680.9260.9261.61.282.292.474.343.976.496.45

12.310.618.614.925.425.134.6

2.844.64.867.836.92

11.31320.520.53232.958.653.88775.3

117123174

0.6330.8461.021.361.542.093.094.064.866.288.11

11.113.417.618.724.230.438.1

0.580.771.11.41.51.92.73.54.45.77.6

10.911.31516.220.726.731.2

3.1

4.3

6.2

9.8

14.5

20.3

24.6

30.5

42.6

Unit: mm

Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately

W

W2 W1

L1 e0

f0

L

CB

(K) MTT1

φd2

**4-φD0

φd1F

Nh

M1

(E) 4-S L1 e0

f0

L

C

φd2

**4-φD0

φd1

F

Nh

M1

(E) 6-S

Model NRS-A Model NRS-LA

Models NRS-A NRS-LAModels NRS-A NRS-LA

Model number coding NRS45 LA 2 QZ SSHH C0 +2040L P Z-Ⅱ

zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.

z . ⁄0,mnbvcx

Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.

2 blocks inclose contact1 block

MA

1 block 2 blocks inclose contact

MB

Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.

will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.

Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-

tacting with each other

Page 17: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-271

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a271

a-270

W

W2 W1

L1 e0

f0

L

CB

(K) Mt T T1

φd2

**4-φD0

φd1F

Nh

M1

(E) 4-φH

L1 e0

f0

L

C

φd2

6-φH

**4-φD0

φd1F

Nh

M1

(E)

Model No.

Externaldimensions LM block dimensions

Height

M

Width

W

Length

L B C H L1 t T T1 K N f0 E e0 D0

Grease

nipple

WidthW1

0-0.05

LM rail dimensions Basic loadrating

Static permissible moment kN-m* Mass

W2

HeightM1

PitchF d1×d2×h

C0

kN

C

kN

LM block

kg

LM rail

kg/m

MC

1 block

NR 25XB NR 25XLBNR 30BNR 30LBNR 35BNR 35LBNR 45BNR 45LBNR 55BNR 55LBNR 65BNR 65LBNR 75BNR 75LBNR 85BNR 85LBNR 100BNR 100LB

31

38

44

52

63

75

83

90

105

72

90

100

120

140

170

195

215

260

82.8102

98120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8

59

72

82

100

116

142

165

185

220

45

52

62

80

95

110

130

140

150200

7

9

9

11

14

16

18

18

20

62.481.670.993.477.9

103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4

16

18

20

22

24

28

30

34

38

14.8

16.8

18.8

20.5

22.5

26

28

32

35

12

14

16

20

22

25

26

28

32

25.5

31

35

40.5

49

60

68

73

85

7

7

8

10

11

16

18

20

23

7

7

8

8

10

15

17

20

23

12

12

12

16

16

16

16

16

10

4

5

6

7

8

9

9

10

12

3.9

3.9

5.2

5.2

5.2

8.2

8.2

8.2

8.2

B-M6F

B-M6F

B-M6F

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/4

25

28

34

45

53

63

75

85

100

23.5

31

33

37.5

43.5

53.5

60

65

80

17

21

24.5

29

36.5

43

44

48

57

40

80

80

105

120

150

150

180

210

6✕9.5✕8.5

7✕11✕9

9✕14✕12

14✕20✕17

16✕23✕20

18✕26✕22

22✕32✕26

24✕35✕28

26✕39✕32

334448.764.963.185.796

126131170189260271355336435479599

84.6113122162155210231303310402436600610800751972

10401300

0.7711.261.262.181.753.143.375.935.398.878.76

16.814.425.420.334.73447.3

3.866.296.63

10.69.47

15.517.72827.843.844.779.973.3

118102160167238

0.4690.7750.7781.331.081.922.073.593.35.415.39

10.18.91

15.412.42120.729.2

2.333.824.056.475.89.43

10.816.916.926.627.34844.771.462.696.2

101146

0.911.211.471.952.243.034.455.826.989.05

11.615.919.325.226.834.643.454.6

0.580.771.11.41.51.92.73.54.45.77.6

10.911.31516.220.726.731.2

3.1

4.3

6.2

9.8

14.5

20.3

24.6

30.5

42.6

Unit: mm

Model number coding NR35 B 2 QZ DDHH C0 +1080L P Z-Ⅱ

zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.

z . ⁄0,mnbvcx

Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately

Model NR-B Model NR-LB

Models NR-B NR-LBModels NR-B NR-LB

Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.

2 blocks inclose contact1 block

MA

1 block 2 blocks inclose contact

MB

Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.

will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.

Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-

tacting with each other

Page 18: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-273

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a273

a-272

Model No.

Externaldimensions LM block dimensions

Height

M

Width

W

Length

L B C H L1 t T T1 K N f0 E e0 D0

Grease

nipple

WidthW1

0-0.05

LM rail dimensions Basic loadrating

Static permissible moment kN-m* Mass

W2

HeightM1

PitchF d1×d2×h

C0

kN

C

kN

LM block

kg

LM rail

kg/m

MC

1 block

NRS 25XB NRS 25XLBNRS 30BNRS 30LBNRS 35BNRS 35LBNRS 45BNRS 45LBNRS 55BNRS 55LBNRS 65BNRS 65LBNRS 75BNRS 75LBNRS 85BNRS 85LBNRS 100BNRS 100LB

31

38

44

52

63

75

83

90

105

72

90

100

120

140

170

195

215

260

82.8102

98120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8

59

72

82

100

116

142

165

185

220

45

52

62

80

95

110

130

140

150200

7

9

9

11

14

16

18

18

20

62.481.670.993.477.9

103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4

16

18

20

22

24

28

30

34

38

14.8

16.8

18.8

20.5

22.5

26

28

32

35

12

14

16

20

22

25

26

28

32

25.5

31

35

40.5

49

60

68

73

85

7

7

8

10

11

16

18

20

23

7

7

8

8

10

15

17

20

23

12

12

12

16

16

16

16

16

10

4

5

6

7

8

9

9

10

12

3.9

3.9

5.2

5.2

5.2

8.2

8.2

8.2

8.2

B-M6F

B-M6F

B-M6F

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/8

B-PT1/4

25

28

34

45

53

63

75

85

100

23.5

31

33

37.5

43.5

53.5

60

65

80

17

21

24.5

29

36.5

43

44

48

57

40

80

80

105

120

150

150

180

210

6✕9.5✕8.5

7✕11✕9

9✕14✕12

14✕20✕17

16✕23✕20

18✕26✕22

22✕32✕26

24✕35✕28

26✕39✕32

25.934.538.25149.567.275.398.8

103133148204212278264342376470

59.879.786.1

115109148163214220284309425431566531687737920

0.5680.9260.9261.61.282.292.474.343.976.496.45

12.310.618.614.925.425.134.6

2.844.64.867.836.92

11.31320.520.53232.958.653.88775.3

117123174

0.5680.9260.9261.61.282.292.474.343.976.496.45

12.310.618.614.925.425.134.6

2.844.64.867.836.92

11.31320.520.53232.958.653.88775.3

117123174

0.6330.8461.021.361.542.093.094.064.866.288.11

11.113.417.618.724.230.438.1

0.580.771.11.41.51.92.73.54.45.77.6

10.911.31516.220.726.731.2

3.1

4.3

6.2

9.8

14.5

20.3

24.6

30.5

42.6

Unit: mm

Model number coding NRS35 B 2 QZ KKHH C0 +2040L P Z-Ⅱ

zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.

z . ⁄0,mnbvcx

Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately

W

W2 W1

L1 e0

f0

L

CB

(K) Mt T T1

φd2

**4-φD0

φd1F

Nh

M1

(E) 4-φH

L1 e0

f0

L

C

φd2

6-φH

**4-φD0

φd1F

Nh

M1

(E)

Model NRS-B Model NRS-LB

Models NRS-B NRS-LBModels NRS-B NRS-LB

Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.

2 blocks inclose contact1 block

MA

1 block 2 blocks inclose contact

MB

Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.

will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.

Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-

tacting with each other

Page 19: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a-274

Overall LM Block Length with Options■Overall LM Block Length (Dimension L) of Models NR/NRS with aDust Prevention Accessory Attached

Model No.

NR/NRS 25XR/XA/XB

NR/NRS 25XLR/XLA/XLB

NR/NRS 30R/A/B

NR/NRS 30LR/LA/LB

NR/NRS 35R/A/B

NR/NRS 35LR/LA/LB

NR/NRS 45R/A/B

NR/NRS 45LR/LA/LB

NR/NRS 55R/A/B

NR/NRS 55LR/LA/LB

NR/NRS 65R/A/B

NR/NRS 65LR/LA/LB

NR/NRS 75R/A/B

NR/NRS 75LR/LA/LB

NR/NRS 85R/A/B

NR/NRS 85LR/LA/LB

NR/NRS 100R/A/B

NR/NRS 100LR/LA/LB

UU SS DD ZZ KK SSHH DDHH ZZHH KKHH

82.8

102

98

120.5

109.5

135

139

171

162.8

200

185.6

245.6

218

274

246.7

302.8

288.8

328.8

82.8

102

98

120.5

109.5

135

139

171

162.8

200

185.6

245.6

218

274

246.7

302.8

288.8

328.8

90.4

109.6

107

129.5

119.7

145.2

149.2

181.2

173

210.2

196.2

256.2

229

285

257.7

313.8

297.8

337.8

89.2

108.4

104.4

126.9

117.1

142.6

147.4

179.4

171.4

208.6

194.2

254.2

226.6

282.6

256.1

312.2

295.6

335.6

96.8

116

113.4

135.9

127.3

152.8

157.6

189.6

181.6

218.8

204.8

264.8

237.6

293.6

267.1

323.2

307.2

347.2

100.1

119.3

119.3

141.8

131.1

156.6

164.4

196.4

188.1

225.3

214.9

274.9

107.7

126.9

128.3

150.8

141.3

166.8

174.6

206.6

198.3

235.5

225.5

285.5

102.5

121.7

121.7

144.2

133.5

159

167.6

199.6

191.3

228.5

218.1

278.1

110.1

129.3

130.7

153.2

143.7

169.2

177.8

209.8

201.5

238.7

228.7

288.7

Unit: mm

Model No.

NR/NRS 25XR/XA/XB

NR/NRS 25XLR/XLA/XLB

NR/NRS 30R/A/B

NR/NRS 30LR/LA/LB

NR/NRS 35R/A/B

NR/NRS 35LR/LA/LB

NR/NRS 45R/A/B

NR/NRS 45LR/LA/LB

NR/NRS 55R/A/B

NR/NRS 55LR/LA/LB

NR/NRS 65R/A/B

NR/NRS 65LR/LA/LB

QZUU QZSS QZDD QZZZ QZKK QZSSHH QZDDHH QZZZHH QZKKHH

105.2

124.4

120.4

142.9

142.7

168.2

172.2

204.2

204.8

242

227.6

287.6

105.2

124.4

120.4

142.9

142.7

168.2

172.2

204.2

204.8

242

227.6

287.6

112.8

132

129.4

151.9

152.9

178.4

182.4

214.4

215

252.2

238.2

298.2

110.9

130.1

126.1

148.6

149.5

175

179.8

211.8

213.5

250.7

236.3

296.3

118.5

137.7

135.1

157.6

159.7

185.2

190

222

223.7

260.9

246.9

306.9

122.5

141.7

141.7

164.2

164.3

189.8

197.6

229.6

231.3

268.5

258.1

318.1

130.1

149.3

150.7

173.2

174.5

200

207.8

239.8

241.5

278.7

268.7

328.7

124.9

144.1

144.1

166.6

166.7

192.2

200.8

232.8

234.5

271.7

261.3

321.3

132.5

151.7

153.1

175.6

176.9

202.4

211

243

244.7

281.9

271.9

331.9

■Overall LM Block Length (Dimension L) of Models NR/NRS withQZ Lubricator Attached Unit: mm

Note: "-" indicates not available.

Page 20: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

a-275

Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a275

Basic Specifications of LaCS®

① Service temperature range of LaCS: -20℃

to +80℃

② Resistance of LaCS: indicated in table 10

Table 10 Resistance of LaCS

Model No.

NR/NRS 25

NR/NRS 30

NR/NRS 35

NR/NRS 45

NR/NRS 55

NR/NRS 65

Resistance of LaCS

8.1

13.4

15.5

23.3

28.6

39.6

Unit: N

Note 1: Each resistance value in the table onlyconsists of that of LaCS, and does notinclude sliding resistances of seals andother accessories.

Note 2: For the maximum service speed of LaCS,contact .

Page 21: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a-276

Grease Nipple

■For LM Guide Models with Dust Prevention Accessories SSHH,DDHH, ZZHH or KKHH

LM Guide models with dust prevention accessories SSHH, DDHH, ZZHH or KKHH have the

grease nipple in the location indicated in Fig. 12. Table 11 shows incremental dimensions with

the grease nipple.

Grease nipple H

LaCS EndplateK :Datum

plane

Fig. 12

Grease nipple mounting location for models NR-NRS Model No.

NR/NRS 25X A/B/LA/LB

NR/NRS 25X R/LR

NR/NRS 30A/B/LA/LB

NR/NRS 30R/LR

NR/NRS 35A/B/LA/LB

NR/NRS 35R/LR

NR/NRS 45A/B/LA/LB

NR/NRS 45R/LR

NR/NRS 55A/B/LA/LB

NR/NRS 55R/LR

NR/NRS 65A/B/LA/LB

NR/NRS 65R/LR

Incremental dimension with grease nipple H

4.8

4.5

7.4

7.4

6.9

15.3

Nipple type

PB1021B

PB1021B

PB1021B

PB1021B

A-M6F

A-M6F

A-M6F

A-M6F

A-M6F

A-M6F

A-PT1/8

A-PT1/8

Model number coding NRS25 XA 2 QZ DDHH +1110L P -Ⅱ

zLM Guide model numberxQZ : with QZ Lubricator, without grease nippleNo symbol: without QZ Lubricator, with grease nipple (see Fig. 12)

cDust prevention accessory symbol (see page a-255)

z cx

Note 1: QZ Lubricator and LaCS are not sold alone.Note 2: Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring both QZ

Lubricator and the grease nipple to be attached, contact .

Unit: mm

Note: When desiring the mounting location for the grease nipple other than the one indicated in Fig. 12,contact .

Table 11

■For LM Guide Models with Dust Prevention Accessories UU or SSFor the mounting location of the grease nipple (N) and its incremental dimension (E) when dust

prevention accessories UU or SS are attached, see the corresponding table of dimensions.

■For LM Guide Models with Dust Prevention Accessories DD, ZZ or KKFor the mounting location of the grease nipple and its incremental dimension when dust pre-

vention accessories DD, ZZ or KK are attached, contact .

Those LM Guide models without QZ Lubricator are equipped with a grease nipple. Fig. 12

shows the mounting location for the grease nipple. Please note that attaching the grease nip-

ple increases the LM block width.

Page 22: Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS NRS Series.pdf · a. Dimensions of the LM Guides a-251 Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS a ity of the

a. Dimensions of the LM Guides

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Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS

a277

■Laminated Contact Scraper LaCS for LM GuidesService environment●Be sure the service temperature range of Laminated Contact Scraper LaCS is between -20℃

and +80℃, and do not clean LaCS in an organic solvent or white kerosene, or leave it

unpacked.

Impregnating oil●The lubricant impregnated into Laminated Contact Scraper LaCS is used to increase the slid-

ing capability of LaCS itself. For lubrication of the LM Guide, attach QZ Lubricator or the

grease nipple.

Function●The intended role of Laminated Contact Scraper LaCS is to remove foreign matter or liquids.

To seal oils, end seals are needed.

Design●When using Laminated Contact Scraper LaCS, be sure to use the dedicated cap C for LM rail

mounting holes or an appropriate form of cover.

■QZ Lubricator for LM GuidesHandling●Dropping or hitting this product may damage it. Take much care when handling it.

●Do not clean it with an organic solvent or white kerosene.

●Do not leave it unpacked for a long period of time.

●Do not block the air vent with grease or the like.

Service temperature range●Be sure the service temperature of this product is between -10℃ and +50℃. When using it

beyond the service temperature range, contact .

Use in a special environment●When using it in a special environment, contact .

Precaution on selection●Be sure the stroke is longer than the overall length of the LM block length attached with QZ

Lubricator.

Corrosion prevention of LM Guides●QZ Lubricator is a lubricating device designed to feed a minimum amount of oil to the ball

raceway of LM rails, and does not provide corrosion prevention to the whole LM Guide. When

using it in an environment subject to a coolant or the like, we strongly recommend applying

grease or other anti-corrosion agent to the mounting base surface and the LM rail end sur-

faces of the LM Guide as an anti-corrosion measure.

Precautions on Use